8315081 has 2 divisors, whose sum is σ = 8315082. Its totient is φ = 8315080.

The previous prime is 8315063. The next prime is 8315089. The reversal of 8315081 is 1805138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4644025 + 3671056 = 2155^2 + 1916^2 .

It is a cyclic number.

It is not a de Polignac number, because 8315081 - 2¹⁸ = 8052937 is a prime.

It is a super-2 number, since 2×8315081² = 138281144073122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8315081.

It is not a weakly prime, because it can be changed into another prime (8315089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4157540 + 4157541.

It is an arithmetic number, because the mean of its divisors is an integer number (4157541).

Almost surely, 2^8315081 is an apocalyptic number.

It is an amenable number.

8315081 is a deficient number, since it is larger than the sum of its proper divisors (1).

8315081 is an equidigital number, since it uses as much as digits as its factorization.

8315081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 8315081 is about 2883.5882160947. The cubic root of 8315081 is about 202.5919391486.

The spelling of 8315081 in words is "eight million, three hundred fifteen thousand, eighty-one".